Switch Specifications
A-2 Specifications
Gigabit Ethernet SFP ports 27 and 28 Two ports that support optional pluggable transceiver
1000BASE-SX, 1000BASE-LX fiber-optic, and 1000BASE-T
copper connections.
Processors/Memory
Processor MPC8241, 266 MHz processor
Synchronous Dynamic Random Access
Memory (SDRAM)
256 MB
FLASH Memory 32 MB
Physical
Dimensions 44 W x 4.4 H x 36.5 D cm
17.3 W x 1.7 H x 14.4 D in
Approximate Weight • A4H124-24FX — 4.85 kg (10.7 lb)
• A4H254-8F8T — 4.78 kg (10.5 lb)
Mean Time Between Failure (MTBF) Refer to the MTBF web site at URL
http://www.enterasys.com/support/mtbf/
Power Specifications
Input Voltage 100 to 240 VAC
Power Consumption • A4H124-24FX — 65.7 W
• A4H254-8F8T — 47.1 W
Input Frequency 50 to 60 Hz
Input Current • A4H124-24FX — 1.0A Max
• A4H254-8F8T — 1.0A Max
Thermal Output Same as Power Consumption (above)
Environmental
Operating Temperature 0°C to 50°C (32°F to 122°F)
Storage Temperature -40°C to +70°C (-40°F to 158°F)
Operating Relative Humidity 5% to 95% (non-condensing)
Altitude Operational up to 10,000 feet
Non-operationally tested to 15,000 feet
Performance
Throughput capacity wirespeed Mpps
(switch/stack)
• A4H124-24FX — 9.5 Mpps / 76.2 Mpps
• A4H254-8F8T — 8.3 Mpps / 66.7 Mpps
Switching capacity (switch/stack) • A4H124-24FX — 12.8 Gbps / 102.4 Gbps
• A4H254-8F8T — 11.2 Gbps / 89.6 Gbps
Stacking capacity(switch/stack) No dedicated stacking ports on these switches. The
10/100/1000 ports can be used for stacking or uplinks.
Aggregate throughput capacity
(switch/stack)
• A4H124-24FX — 12.8 Gbps / 102.4 Gbps
• A4H254-8F8T — 11.2 Gbps / 89.6 Gbps
Table A-1 A4 Switch Specifications (continued)
Item Specification
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